Answer this question truthfully
### Question: What causes Pulseless electrical activity?
### Response: Common causes of PEA include preceding respiratory failure in 40% to 50% of cases, and hypovolemia. The common causes of PEA can be remembered using the mnemonic "The Hs and Ts".
H ypovolemia H ypoxia H ydrogen ions (Acidosis) H ypothermia H yperkalemia or H ypokalemia H ypoglycemia T ablets or T oxins (Drug overdose) such as beta blockers, tricyclic antidepressants, or calcium channel blockers T amponade T ension pneumothorax T hrombosis (Myocardial infarction) T hrombosis (Pulmonary embolism) T rauma (Hypovolemia from blood loss) Covid-19